| Specifications |
320GB |
| Model Number |
STM3320820AS |
| Interface |
SATA 3.0Gb/s |
| Cache |
8 MBytes |
| Capacity |
320GB |
| Guaranteed Sectors |
625,142,448 |
| Number of pins on the I/O connector |
7 |
| PHYSICAL |
|
| Height (max) |
26.1 mm (1.028 inches) |
| Width (max) |
101.6 mm (4.000 inches) |
| Length (max) |
146.99 mm (5.787 inches) |
| Weight (typical) |
STM3320820AS grams (1.32 pounds) |
| PERFORMANCE |
|
| Spindle Speed |
7,200 rpm |
| Average latency |
4.16 msec |
| Random read seek time |
8.5 msec |
| Random write seek time |
10.0 msec |
| RELIABILITY |
|
| Annual Failure Rate |
0.34% |
| Unrecoverable read errors |
1 in 10^14 |
| POWER |
|
| 12V start max current |
2.8 amps |
| Average idle current |
0.520 watts |
| Average idle power (temp) |
14 watts |
| Standby power |
0.80 watts |
| Sleep power |
0.807 watts |
| Maximum operating current, DC |
0.762 amps |
| ENVIRONMENT |
|
| Ambient Temperature |
|
| Operating |
0 to 60 degrees C |
| Nonoperating |
-40 to 70 degrees C |
| Maximum operating temperature change |
20 degrees C per hour |
| Maximum nonoperating temperature change |
30 degrees C per hour |
| Maximum operating case temperature |
69 degrees C |
| Relative Humidity |
|
| Operating |
5 to 90 % |
| Nonoperating |
5 to 95 % |
| Maximum allowable humidity change |
30 % per hour |
| Altitude |
|
| Operating altitude (min) |
-60.96 meters (-200 feet) |
| Operating altitude (max) |
null meters (10,000 feet) |
| Nonoperating altitude (min) |
-60.96 meters (-200 feet) |
| Nonoperating altitude (max) |
12,192 meters (40,000 feet) |
| Shock |
|
| Operating Shock (max) |
68 Gs at 2 msec |
| Nonoperating Shock (max) |
350 Gs at 2 msec |
| Vibration |
|
| Operating vibration |
0.25 Gs at 5 to 22 Hz |
| Operating vibration |
0.50 Gs at 22 to 350 Hz |
| Operating vibration |
0.25 Gs at 350 to 500 Hz |
| Nonoperating vibration |
0.25 Gs at 5 to 22 Hz |
| Nonoperating vibration |
5.0 Gs at 22 to 350 Hz |
| Nonoperating vibration |
1.0 Gs at 350 to 500 Hz |
